Over the past five years many different modulation schemes have been proposed for chaotic communications. Of these, the DCSK and FM-DCSK techniques offer the best noise performance. However, even the noise performance of these schemes is a few dB worse than that of the conventional noncoherent FSK technique. The paper shows how the noise performance of DCSK and FM-DCSK systems can be improved considerably. Two solutions are considered: in the first version more than one information bit is sent using the same reference signal, while in the second version the received noisy sample functions are cleaned by averaging.
|Journal||Proceedings - IEEE International Symposium on Circuits and Systems|
|Publication status||Published - Jan 1 1999|
|Event||Proceedings of the 1999 IEEE International Symposium on Circuits and Systems, ISCAS '99 - Orlando, FL, USA|
Duration: May 30 1999 → Jun 2 1999
ASJC Scopus subject areas
- Electrical and Electronic Engineering